A senior environmental watchdog official said on Monday authorities would look into the fabrication of environmental monitoring data.
"The authorities will strengthen supervision and environmental law enforcement," Wu Xiaoqing, vice minister of environmental protection, said at the 11th Forum on Environment and Development in Beijing, adding that those who forge monitoring data will be punished.
Wu vowed to ensure full implementation of China's new Environmental Protection Law, dubbed as the "strictest ever" law, and to formulate support regulations for the Air Pollution Control Law that were passed in August.
China submitted its post-2020 climate action plan to the UN in June, pledging to cut carbon dioxide emissions per unit of GDP by 60 to 65 percent from 2005 levels by 2030.
Isabelle Louis, Deputy Director of the Regional Office for Asia and the Pacific under the UNEP, told the Global Times on Monday that it is possible for China to further cut carbon dioxide emissions, as the commitment was at the minimum level.